Chromium OS is the open-source project behind ChromeOS. Community builds like or CloudReady (now part of Flex) provide ISO-like images.
If you absolutely need the "full" experience—including the Google Play Store—you have to look toward community projects. Google Chrome Os Download Iso 64 Bit
: It is significantly faster than Windows on older hardware because it runs mostly in the cloud. Chromium OS is the open-source project behind ChromeOS
Chromium OS is the open-source foundation. Chrome OS adds proprietary components: Adobe Flash (deprecated), Widevine DRM for Netflix/Spotify, Google Play Store, automatic updates, and Verified Boot. Widevine DRM for Netflix/Spotify